<template>
  <div class="login-container">
    <el-card class="login-form">
      <el-form ref="loginForm" :model="loginForm" :rules="loginRules" auto-complete="on" label-position="left">
        <div class="title-container">
          <h3 class="title">用户登录
            <el-dropdown trigger="click" style="float:right;color:grey;fontSize:25px " @command="handleCommand">
              <span class="el-dropdown-link">
                <svg-icon icon-class="language" />
              </span>
              <el-dropdown-menu slot="dropdown">
                <el-dropdown-item command="zh">中文</el-dropdown-item>
                <el-dropdown-item command="en">英文</el-dropdown-item>
              </el-dropdown-menu>
            </el-dropdown>

          </h3>

        </div>
        <el-form-item prop="username">
          <span class="svg-container">
            <svg-icon icon-class="user" />
          </span>
          <el-input
            ref="username"
            v-model="loginForm.username"
            placeholder="Username"
            name="username"
            type="text"
          />
        </el-form-item>

        <el-form-item prop="password">
          <span class="svg-container">
            <svg-icon icon-class="password" />
          </span>
          <el-input
            :key="passwordType"
            ref="password"
            v-model="loginForm.password"
            :type="passwordType"
            placeholder="Password"
            name="password"
            @keyup.enter.native="handleLogin"
          />
          <span class="show-pwd" @click="showPwd">
            <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
          </span>
        </el-form-item>

        <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">{{ $t('login.login') }}</el-button>

        <div class="tips">
          <span style="margin-right:20px;">username:root@admin.com</span>
          <span> password:123456</span>
        </div>

      </el-form>
    </el-card>
    <div class="back_img">
      <img src="./assets/logingBg.png" alt="">
    </div>
  </div>
</template>

<script>
// import { validUsername } from '@/utils/validate'
// import { login } from '@/api/user'
import crypto from 'crypto'
// import { log } from 'util'
// import { log } from 'util'

export default {
  name: 'Login',
  data() {
    const isEmail = (rule, value, callback) => {
      if (!value) {
        callback()
      } else {
        const reg = /^[a-z0-9]+([._\\-]*[a-z0-9])*@([a-z0-9]+[-a-z0-9]*[a-z0-9]+.){1,63}[a-z0-9]+$/
        const email = reg.test(value)
        if (!email) {
          callback(new Error('邮箱格式如:admin@163.com'))
        } else {
          callback()
        }
      }
    }

    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('The password can not be less than 6 digits'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        username: 'root@admin.com',
        password: '123456'
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: isEmail }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    handleCommand(command) {
      console.log(command)
      this.$i18n.locale = command
    },
    // MD5加密
    setMd5() {
      var md5 = crypto.createHash('md5')
      md5.update(this.loginForm.password)// this.pw2这是你要加密的密码
      console.log(this.loginForm, 'this.loginForm-------')
      return md5.digest('hex')// this.pw这就是你加密完的密码，这个往后台传就行了
    },
    // sha256加密
    setSha() {
      const sha256 = require('js-sha256').sha256// 这里用的是require方法，所以没用import
      // 这就是你加密之后的密码
      return sha256(this.loginForm.password)// 要加密的密码
    },

    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(async(valid) => {
        if (valid) {
          const password = this.setSha()
          console.log(password)
          await this.$store.dispatch('user/login', {
            username: this.loginForm.username,
            password
          })

          this.$router.push('/')
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#000;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  width: 100%;
  height: 100%;
  background: url('./assets/bg.jpg') no-repeat center/ cover  ;
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
  // .el-form-item{
  //   background-color: #fff;
  // }
}
</style>

<style lang="scss" scoped>

$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  overflow: hidden;
  position: relative;
  .back_img{
    position: absolute;
    right: 10%;
    top: 25%;
    width: 520px;
    height: 350px;
    img{
    width: 520px;
    height: 350px;
    }
    // background: url('./assets/logingBg.png') no-repeat center / cover;
  }
  .login-form {
    position: absolute;
    left: 20%;
    top: 25%;
    width: 520px;
    max-width: 100%;
    background-color: #f5f5f5;
    margin: 0 auto;
    overflow: hidden;
    z-index: 1;

  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 22px;
      color: #000;
      margin: 20px auto 10px auto;
      padding-left:50px ;
      background: url('./assets/loginLogo.png') no-repeat ;
      font-weight: 500;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
